![Symmetricom TimeProvider 500 series Скачать руководство пользователя страница 123](http://html.mh-extra.com/html/symmetricom/timeprovider-500-series/timeprovider-500-series_reference-manual_1419598123.webp)
Issue 2: Sep 99
TMSL 097-44018-26
Page 123
COMMAND CODE: RTRV-SSM-EQPT (Contd)
RESPONSE FORMAT (Contd)
parameter
value
meaning
ssmmsg
QL-DNU
Do not use for synchronization
QL-DUS
Do not use for synchronization
QL-NONE
SSM is not used
QL-NORM
No quality level has been assigned; the incoming quality
level message will be used, along with equipment condi-
tions, to determine the output quality level message
QL-PRC
Signal is traceable to a primary reference clock
QL-PRS
Signal is traceable to a primary reference source
QL-RES
Signal traceable to a user-defined level
QL-SEC
Signal is traceable to SDH equipment clock
QL-SMC
Signal is traceable to SONET minimum clock
QL-SSUL
Signal is traceable to synchronization supply unit local
QL-SSUT
Signal is traceable to synchronization supply unit transit
QL-ST2
Signal is traceable to a stratum 2 level
QL-ST3
Signal is traceable to a stratum 3 level
QL-ST3E
Signal is traceable to a stratum 3E level
QL-ST4
Signal is traceable to a stratum 4 level
QL-STU
Signal is traceable to an unknown stratum level
QL-TNC
Signal is traceable to a transit node clock
QL-UNK
Signal is traceable to an unknown stratum level